Selective Hg2+ sensor: rGO-blended PEDOT:PSS conducting polymer OFET

Sayyad, Pasha W.; Ingle, Nikesh N.; Al‐Gahouari, Theeazen; Mahadik, Manasi M.; Bodkhe, Gajanan A.; Shirsat, Sumedh M.; Shirsat, Mahendra D.

doi:10.1007/s00339-021-04314-1

Cited by 32 publications

(20 citation statements)

References 57 publications

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“…Among CPs, Poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) or PEDOT:PSS has been actively investigated to be employed as an electrode modifier due to its high conductivity 34 , a broad electrochemical window and good chemical stability 35 , and good film-forming process. [36][37] The presence of PSS in PEDOT plays an important function for polymer stability also could facilitates an electrostatic interaction towards oxygen-rich functional groups in GO material. 38 In addition, the PEDOT:PSS material might perform a suitable barrier to stop the restacking process of rGO layers, and thus enhancing its conductivity, electrocatalytic activity, and specific surface area.…”

Section: Introductionmentioning

confidence: 99%

A facile electrochemical sensor based on a composite of electrochemically reduced graphene oxide and a PEDOT:PSS modified glassy carbon electrode for uric acid detection

et al. 2022

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A glassy carbon electrode modified with electrochemically reduced graphene oxide (ErGO) and poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) was developed for the uric acid determination with dopamine as interference in artificial saliva. The electrochemical performance of the fabricated electrode was studied using both techniques of cyclic voltammetry (CV) and differential pulse voltammetry (DPV), under optimized conditions. Using DPV, the sensor based on ErGO/PEDOT:PSS modified GCE displayed a linear relationship in the concentration ranges of 10-100 µM for uric acid. This uric acid sensor exhibited a high sensitivity with the detection limits of 1.08 µM and the quantitation limit of 3.61 µM. This sensor also showed good reproducibility for uric acid detection in the artificial saliva in 5 consecutive days measurements. This device was successfully used to analyze uric acid in the artificial saliva as well as in human saliva sample using standard addition method.

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Section: Introductionmentioning

confidence: 99%

A facile electrochemical sensor based on a composite of electrochemically reduced graphene oxide and a PEDOT:PSS modified glassy carbon electrode for uric acid detection

et al. 2022

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“…FTIR spectra of virgin PEDOT:PSS exhibited broad distinctive peaks at 3400 cm −1 due to OH stretching and 2984 cm −1 due to CH stretching 33 . A peak at 1073 cm −1 ascribed to the ethylenedioxy group 34,35 . Vibrational band at 1179 cm −1 is attributed to COC butyral ring and the band at 907 cm −1 assigned to CO stretching of PVB polymer 36 .…”

Section: Resultsmentioning

confidence: 99%

Development of soft polymer blend for copper ion detection by electrochemical route

Mane

Joshi

Shirsat

et al. 2023

J of Applied Polymer Sci

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In the present work, we have prepared polymer blend of polyvinyl butyral (PVB) and poly (3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT: PSS) by solution casting route. Blends were tested for various structural, morphological, and electrochemical techniques. Structural properties were investigated by XRD technique exploring the contribution conducting polymer in host system PVB exhibit amorphous nature. COO functional group contributed in blend configuration was confirmed by FTIR technique. Clustering of PEDOT:PSS in blend system were observed by scanning electron microscopy.Subatomic surface topology and increased roughness due to blending concentration of conducting polymer were analyzed by probe microscopy techniques.Increased softness of blends was confirmed by shore "A" durometer test. PVB/PEDOT:PSS blend was drop casted on glassy carbon electrode and employed for detection of various metal ions. It was deployed for electrochemical sensing of Cu 2+ ion. Electrochemical sensing investigation was done by differential pulse voltammetry technique. Performance of blends at 4.5 pH, 200 s deposition time and À1.2 V deposition potential was more accurate and sensitive toward detection of Cu 2+ ion. The developed electrochemical sensor exhibited rapid sensing response in the range of 1.6 to 8.3 μM. Furthermor,e an influence of many analytical parameters such as pH, deposition time and deposition potential on Cu 2+ ion investigation were disclosed. This investigation may be feasible to construct a very simple, fast, and efficient electrochemical sensing system for toxic heavy metals at low-level concentration.

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“…[ 88 ] Among all PT derivatives, the most popular is poly(3,4‐ethylenedioxythiophene) (PEDOT) which is usually doped with polystyrene sulfonate (PSS) to form a highly conductive polymer mixture (Figure 2b). PEDOT:PSS is also characterized by a remarkably high electrochemical stability which combined with its very narrow bandgap make it suitable for several electroanalytical biosensing applications such as detection of biorelevant species (e.g., dopamine (DA), uric acid (UA), ascorbic acid (AA), [ 89,90 ] glucose, [ 91 ] and metal ions [ 92,93 ] ) as well as for the fabrication of stimuli‐responsive scaffold for tissue engineering applications. [ 39,94,95 ]…”

Section: Methodsmentioning

confidence: 99%

Conductive Polymer‐Based Bioelectronic Platforms toward Sustainable and Biointegrated Devices: A Journey from Skin to Brain across Human Body Interfaces

Bettucci

Matrone

Santoro

2021

Adv Materials Technologies

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the human's body toward medical applications. [1] Coupling electronics with human tissues allows sensing, stimulating and possibly regulating biological functions. On these premises, a key paradigm of bioelectronics is to preserve the functionality of the biological environment upon coupling, in order to "observe biology through non-perturbing lenses". However, aiming to a seamless interface, the properties of common electronic components, based on metals or inorganic semiconductors, have major limitations to comply with the coupling requirements for cells, organs, and tissues. [2] In fact, inorganic materials might display mechanical rigidity (high Young's modulus ≈100 GPa), [3,4] surface degradation phenomena (oxidation) [5] and surface structure which increases interface capacitance. [6,7] Organic materials have so emerged combining mechanical flexibility, compatibility with large area and different surface functionalization processes, while keeping high electrical conductivity and reproducibility. [8,9] Particularly, these materials intrinsically display key properties such as tunable surface roughness, [10] surface chemical reactivity 11 , and Young's moduli ranging from 20 kPa to 3 GPa, [11,12] approaching the modulus of living tissue (10 kPa [13] ). However, the diversity of biological landscapes offered by the different human tissues, in terms of mechanical flexibility, interface functionalization, accessibility and biological activities defines sets of requirements so stringent that commonly for each tissue/organ coupling ad hoc devices and platforms have been developed. Hence, examining the three major human's body interfaces targeted by bioelectronics applications (skin, heart, and brain), this review focuses on the strategies that can be adopted by employing organic materials such as surface patterning, novel material synthesis and bio-functionalization in order to enhance tissue/organ-specific coupling performances. These aspects are investigated highlighting current and future main challenges and providing perspectives on the development of the next generation organic bioelectronics devices, thus envisioning systems that are: 1) able to adapt their interface in shape and size to comply with different curvilinear and hierarchical biological architectures and 2) combine sensing and stimulation to dynamically control biological functions for biomedical applications.

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Selective Hg2+ sensor: rGO-blended PEDOT:PSS conducting polymer OFET

Cited by 32 publications

References 57 publications

A facile electrochemical sensor based on a composite of electrochemically reduced graphene oxide and a PEDOT:PSS modified glassy carbon electrode for uric acid detection

A facile electrochemical sensor based on a composite of electrochemically reduced graphene oxide and a PEDOT:PSS modified glassy carbon electrode for uric acid detection

Development of soft polymer blend for copper ion detection by electrochemical route

Conductive Polymer‐Based Bioelectronic Platforms toward Sustainable and Biointegrated Devices: A Journey from Skin to Brain across Human Body Interfaces

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